WASHINGTON (AP) — Tiger Woods says it's "a little too soon" to know whether his ailing back will be well enough for him to enter the Masters.

Speaking at a news conference Monday to announce that Quicken Loans is the new title sponsor of his golf tournament, Woods said he's been trying to get ready for the Masters on April 10-13 at Augusta National. It's the only major tournament he's never missed.

Woods is off to the worst start of his 18 years on tour, and last week he withdrew from the Arnold Palmer Invitational because of persistent back pain.

Asked whether he'll play the Masters, Woods replied: "For Augusta, it's actually still a little too soon, to be honest with you. That's kind of the frustrating thing about this."

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